it's seen as a gateway for the taliban to target kabul. u.s. officials say they take the allegations and misconduct seriously and are discussing them with their afghan counter parts. >>> in cuba, president raul castro announced he will step down as president in 2018. the announcement came as the president accepted a new five year term as president. his brother former president fidel castro received a standing ovation during today's national assembly meeting. this is the first time he has appeared at this meeting in three years. >>> the new secretary of the state john kerry is in london on his first trip overseas as america's chief diplomat. kerry is scheduled to visit nine countries in the next few days. the goal is to find the fix problem in syria. >>> from nascar's biggest race to where it all begins. the significance of today's historic daytona 500 and its impact on young bay area race drivers. >>> jimmy carter makes a visit here in the bay area. his harsh words for the obama administration and the challenge he issued to the audience. there'